Config配置文件操作类

 public class ConfigHelper
    {
        private static Configuration _Config;
        /// <summary>
        /// 读取配置文件
        /// </summary>
        /// <param name="Path">配置文件地址</param>
        /// <param name="Node">App节点名</param>
        /// <returns></returns>
        public static AppSettingsSection Read(string Path, string Node)
        {
            _Config = WebConfigurationManager.OpenWebConfiguration(Path);
            return (System.Configuration.AppSettingsSection)_Config.GetSection(Node);
        }
        /// <summary>
        /// 添加一个Add节点
        /// </summary>
        /// <param name="Path">配置文件地址</param>
        /// <param name="Node">App节点名</param>
        /// <param name="Key">节点名</param>
        /// <param name="Value">节点值</param>
        /// <returns></returns>
        public static bool Adds(string Path, string Node, string Key, string Value)
        {
            System.Configuration.AppSettingsSection AppSettings = Read(Path, Node);
            try
            {
                AppSettings.Settings.Add(Key, Value);
                _Config.Save(ConfigurationSaveMode.Modified);
                return true;
            }
            catch
            {
                return false;
            }
        }
        /// <summary>
        /// 更新一个Add节点
        /// </summary>
        /// <param name="Path">配置文件地址</param>
        /// <param name="Node">App节点名</param>
        /// <param name="Key">节点名</param>
        /// <param name="Value">节点值</param>
        /// <returns></returns>
        public static bool Update(string Path, string Node, string Key, string Value)
        {
            System.Configuration.AppSettingsSection AppSettings = Read(Path, Node);
            try
            {
                AppSettings.Settings[Key].Value = Value;
                _Config.Save(ConfigurationSaveMode.Modified);
                return true;
            }
            catch
            {
                return false;
            }
        }
        /// <summary>
        /// 删除一个Add节点
        /// </summary>
        /// <param name="Path">配置文件地址</param>
        /// <param name="Node">App节点名</param>
        /// <param name="Key">节点名</param>
        /// <returns></returns>
        public static bool Remove(string Path, string Node, string Key)
        {
            System.Configuration.AppSettingsSection AppSettings = Read(Path, Node);
            try
            {
                AppSettings.Settings.Remove(Key);
                _Config.Save(ConfigurationSaveMode.Modified);
                return true;
            }
            catch
            {
                return false;
            }
        }
        /// <summary>
        /// 得到AppSettings中的配置字符串信息
        /// </summary>
        /// <param name="key"></param>
        /// <returns></returns>
        public static string GetConfigString(string key)
        {
            string CacheKey = "AppSettings-" + key;
            object objModel = DataCache.GetCache(CacheKey);
            if (objModel == null)
            {
                try
                {
                    objModel = ConfigurationManager.AppSettings[key];
                    if (objModel != null)
                    {
                        DataCache.SetCache(CacheKey, objModel, DateTime.Now.AddMinutes(180), TimeSpan.Zero);
                    }
                }
                catch
                { }
            }
            return objModel.ToString();
        }
        /// <summary>
        /// 得到AppSettings中的配置Bool信息
        /// </summary>
        /// <param name="key"></param>
        /// <returns></returns>
        public static bool GetConfigBool(string key)
        {
            bool result = false;
            string cfgVal = GetConfigString(key);
            if (null != cfgVal && string.Empty != cfgVal)
            {
                try
                {
                    result = bool.Parse(cfgVal);
                }
                catch (FormatException)
                {
                    // Ignore format exceptions.
                }
            }
            return result;
        }
        /// <summary>
        /// 得到AppSettings中的配置Decimal信息
        /// </summary>
        /// <param name="key"></param>
        /// <returns></returns>
        public static decimal GetConfigDecimal(string key)
        {
            decimal result = 0;
            string cfgVal = GetConfigString(key);
            if (null != cfgVal && string.Empty != cfgVal)
            {
                try
                {
                    result = decimal.Parse(cfgVal);
                }
                catch (FormatException)
                {
                    // Ignore format exceptions.
                }
            }
            return result;
        }
        /// <summary>
        /// 得到AppSettings中的配置int信息
        /// </summary>
        /// <param name="key"></param>
        /// <returns></returns>
        public static int GetConfigInt(string key)
        {
            int result = 0;
            string cfgVal = GetConfigString(key);
            if (null != cfgVal && string.Empty != cfgVal)
            {
                try
                {
                    result = int.Parse(cfgVal);
                }
                catch (FormatException)
                {
                    // Ignore format exceptions.
                }
            }
            return result;
        }
    }